I'm not sure I agree. For example, an exchange that changes bitcoin to fiat would have to implement new wallets, processes and change its way of operation to habdle new coins, of which this is. It will open them up to more risk etc, all for a coin they may well thinknis going to tank and disappear. If BCC becomes dominant (unlikely in my view) then I'm sure they will be forced to start trading it.

For now, people should not be keeping coins in exchanges anyway, so it's a non issue. After 1 Aug if you want to exchange your BCC coins, just transfer to an exchange that will accept them and sell. No issue!